if the simple interest on rupees 2000 increased by rupees 40 when the time increase by 4 years find the rate percent per annum
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Hope's this will helps you
Step-by-step explanation:
p = 2000
R = R./p.a
Time = 1 year
S.I = 2000×R×T/100
= 20RT
(2PRT+40T) -20RT = 40
20RT + 40T -20RT = 40
40T = 40
T = 40/ 40
T = 1 year
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